Operating- catch tn tool-holders



UNITED sTATEs PATENT oEEIcE.. i

JOHN ALLENDER, OF NEW LONDON, CONNECTICUT.

OPERATING CATCH IN TOOL-HOLDERS.

Specicaton of Letters Patent No.v10,853, dated May 2, 1854.

To all 'whom t may concern Be it known that I, JOHN ALLENDER, of NewLondon, in the county of New London and State' of Connecticut, haveinvented vcertain new and useful Improvements in Sockets to Hold Tools;and I do hereby declare that the same are described and represnted inthe following specifications and drawings.

To enable others skilled in the art to make and use my improvements Iwill proceed to describe their construction and use referring to thedrawings in which the same letters indicate like parts in each of thefigures.

Figure l, is an elevation of the socket with the shank of a tool in it.Fig. 2 is an elevation of the end of the socket. Fig. 3, is a section ofFig. 2, cut through the line z z.

In these drawings A is a socket or a portion of a bit stock, with a holeB in the end to which the shank C of a tool or bit is fitted; whichshank is provided with a score e for the end of the catch f whichtraverses in the slot and score 7L in the end of the socket A. The catchf is provided with a projection z' fitted to the eccentric score k inthe face plate G which plate is fitted to the end of the socket A andprovided with a rim or flange m which surrounds the end of the socketand is burnished over the rim or iange of the socket as represented inFig. 3, to hold it on, and at the same time allow it to mo-ve freely onthe socket when it is desirable to draw back the catch f, and releasetheshank C or force it forward and fasten the shank-C in the socket A;the eccentric groove or score 1c acting upon the projection z' of thecatch f, as the face plate Gr is turned by seizing it with the hand; andthe edge of the plate and the outside of the flange may be milled orscored to prevent the hand from slipping upon it.

I contemplate that the face plate Gr may be held against the end of thesocket by countersinking the hole in it and riveting over the end of thesocket A which projects through it at y). Or there may be some circularslots in the face plate for screws to be put through and screwed intothe end of the socket to hold it on, so as to dispense with burnishingover the edge of the iange m, and the ange also if desirable.

I am aware numerous sockets have been devised to hold tools, and alsomany devices to hold the tools in the sockets, most of them are eitherexpensive to make, inconvenient to use, are complicated, consisting ofmany pieces, or donot hold the tools well after they are inserted, sothat something simple, cheap, convenient to use and that would hold thetools well and firmly has long been wanting.

The object of my invention is to supply this want, by furnishing a moresimple socket consisting of but few pieces, that is convenient to useand will hold the tools firmly, besides being far cheaper and a muchbetter article than those heretofore made.

What I claim as my invention and desire to secure by Letters Patent inthe above dee scribed socket is- The face plate with an eccentric grooveor slot `in combination with the sliding catch, with a projection fittedto said groove and so arranged as to traverse the catch by turning theplate substantially as described.

JOHN ALLENDER.

vWitnesses THOMAS PIMER, THOMAS I-IAwoRTH.

